WO2022199366A1 - 针对bwp切换指示的处理方法及装置、计算机可读存储介质 - Google Patents

针对bwp切换指示的处理方法及装置、计算机可读存储介质 Download PDF

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WO2022199366A1
WO2022199366A1 PCT/CN2022/079453 CN2022079453W WO2022199366A1 WO 2022199366 A1 WO2022199366 A1 WO 2022199366A1 CN 2022079453 W CN2022079453 W CN 2022079453W WO 2022199366 A1 WO2022199366 A1 WO 2022199366A1
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bwp
dci
uplink
valid
downlink scheduling
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English (en)
French (fr)
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谭霞
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1221—Wireless traffic scheduling based on age of data to be sent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to a method and device for processing a BWP handover indication, and a computer-readable storage medium.
  • NR new radio
  • LTE Long Term Evolution
  • the BWP handover may cause the UE to lose contact with the base station, if the UE falsely picks up the DCI indicating the BWP handover, the entire process of the UE will change, thereby affecting the entire communication performance.
  • the UE needs to be more cautious.
  • the UE using the prior art cannot well filter out the falsely detected DCI indicating BWP handover, which seriously affects the communication quality with the base station.
  • the technical problem solved by the present invention is how to filter out the DCI indicating BWP handover which is falsely detected more accurately, to ensure that the UE and the base station are always in the same BWP, and to improve and ensure the communication quality.
  • an embodiment of the present invention provides a method for processing a BWP handover instruction, including: in response to detecting a DCI indicating a BWP handover, determining whether effective uplink and downlink scheduling occurs in the original BWP before switching to the target BWP; If the judgment result indicates that no valid uplink and downlink scheduling has occurred, switch to the target BWP.
  • the processing method further includes: if the judgment result indicates that valid uplink and downlink scheduling occurs, continuing to reside in the original BWP.
  • the processing method further includes: if a DCI indicating switching to the target BWP is received again before switching to the target BWP, immediately switching to the target BWP.
  • the judging whether valid uplink and downlink scheduling occurs on the original BWP before switching to the target BWP includes: judging whether uplink and downlink scheduling occurs on the original BWP before switching to the target BWP; if the judgment result indicates that uplink and downlink scheduling occurs, then according to The decoding result of the uplink and downlink scheduling determines whether the uplink and downlink scheduling is valid.
  • the judging whether uplink and downlink scheduling occurs on the original BWP before switching to the target BWP includes: judging whether other DCIs are detected on the original BWP before switching to the target BWP; judging whether data transmission occurs on the original BWP before switching to the target BWP scheduling.
  • the judging whether the uplink and downlink scheduling is valid according to the decoding result of the uplink and downlink scheduling includes: if no other DCI is detected in the original BWP before switching to the target BWP, but scheduling of data transmission occurs, then The original BWP receives the data; and judges whether the uplink and downlink scheduling is valid according to the decoding result of the data.
  • the scheduled DCI indicating the data transmission is sent in a time slot before the DCI indicating BWP switching is detected.
  • the judging whether the uplink and downlink scheduling is valid according to the decoding result of the uplink and downlink scheduling includes: if other DCIs are detected in the original BWP before switching to the target BWP, and scheduling of data transmission occurs, comparing all the DCIs.
  • the decoding confidence of the other DCI and the DCI indicating BWP switching is greater than the decoding confidence of the DCI indicating BWP switching, and the difference between the two is greater than the first prediction If a threshold is set, it is determined that the uplink and downlink scheduling is valid; if the decoding confidence of the other DCIs is less than the decoding confidence of the DCI indicating BWP handover, and the difference between the two is greater than the first preset threshold, Then it is determined that the uplink and downlink scheduling is invalid; if the deviation between the decoding confidences of the other DCIs and the decoding confidences of the DCI indicating the BWP handover is less than the first preset threshold, then in the original The BWP receives the data, and judges whether the uplink and downlink scheduling is valid according to the decoding result of the data.
  • the determining whether the uplink and downlink scheduling is valid according to the decoding result of the data includes: if the decoding result of the data indicates that the data is valid, determining that the uplink and downlink scheduling is valid; The decoding result of the data indicates that the data is invalid, and it is determined that the uplink and downlink scheduling is invalid.
  • the valid data includes at least any one of the following situations: the received PDSCH is valid; other detected DCIs are successfully decoded.
  • the processing method further includes: judging whether a DCI or a valid PDSCH is received in the target BWP within a preset period; If DCI and valid PDSCH are received, switch back to the original BWP; if DCI or valid PDSCH is received within the preset period, continue to camp on the target BWP.
  • the decoding confidence of the DCI indicating the BWP handover is greater than or equal to a second preset threshold.
  • the preset period is shorter than the duration of the BWP inactivation timer, wherein the BWP inactivation timer is indicated by the DCI indicating the BWP switching.
  • the processing method further includes: receiving and decoding the PDSCH at the target BWP; if the decoding result indicates that the If the PDSCH is valid, continue to reside in the target BWP; if the decoding result indicates that the PDSCH is invalid, switch back to the original BWP.
  • the processing method further includes: suspending the sending of the PUSCH in the target BWP; if an indication is received within the HARQ cycle If the DCI of PUSCH retransmission or other DCI is detected, it will continue to reside in the target BWP; if the DCI indicating PUSCH retransmission is not received or other DCI is detected after the HARQ period, it will switch back to the original BWP.
  • the decoding confidence of the DCI indicating the BWP handover is less than a second preset threshold.
  • the DCI is USS DCI.
  • the processing method before judging whether valid uplink and downlink scheduling occurs in the original BWP before switching to the target BWP, the processing method further includes: performing validity detection on at least part of the bit field of the DCI indicating the BWP handover; If the performance detection passes, it is determined whether valid uplink and downlink scheduling occurs in the original BWP before switching to the target BWP.
  • an embodiment of the present invention also provides a processing device for a BWP handover instruction, including: a judgment module, in response to detecting a DCI indicating a BWP handover, to judge whether a valid BWP occurs before switching to the target BWP. Uplink and downlink scheduling; the switching module, if the judgment result indicates that no valid uplink and downlink scheduling has occurred, switch to the target BWP.
  • embodiments of the present invention further provide a computer-readable storage medium, where the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored thereon. The steps of the above-described methods are performed when the computer program is executed by the processor.
  • an embodiment of the present invention further provides a processing device for a BWP handover instruction, including a memory and a processor, where the memory stores a computer program that can run on the processor, and the processor The steps of the above-described methods are performed when the computer program is run.
  • An embodiment of the present invention provides a method for processing a BWP handover instruction, comprising: in response to detecting a DCI indicating a BWP handover, determining whether effective uplink and downlink scheduling occurs in the original BWP before switching to the target BWP; valid uplink and downlink scheduling, then switch to the target BWP.
  • the present embodiment identifies the false detection indication as much as possible by combining the subsequent scheduling situation on the original BWP after detecting the instructed BWP handover.
  • the DCI of the BWP handover ensures that the UE and the base station are in the same BWP, and the communication quality is guaranteed.
  • the processing method further includes: judging whether DCI or a valid PDSCH is received in the target BWP within a preset period; If a valid PDSCH is received, switch back to the original BWP; if DCI or a valid PDSCH is received within the preset period, continue to camp on the target BWP. Therefore, according to the scheduling situation of the target cell to be handed over, it can also be confirmed whether the BWP handover is reasonable this time.
  • the processing method further includes: receiving and decoding the PDSCH at the target BWP; if the decoding result indicates that the PDSCH If it is valid, continue to reside in the target BWP; if the decoding result indicates that the PDSCH is invalid, switch back to the original BWP. Therefore, according to the scheduling situation of the target cell to be handed over, it can also be confirmed whether the BWP handover is reasonable this time.
  • the processing method further includes: suspending the sending of the PUSCH in the target BWP; If the transmitted DCI or other DCI is detected, it continues to reside in the target BWP; if the DCI indicating PUSCH retransmission is not received or other DCI is detected after the HARQ period, it switches back to the original BWP. Therefore, according to the scheduling situation of the target cell to be handed over, it can also be confirmed whether the BWP handover is reasonable this time.
  • FIG. 1 is a flowchart of a method for processing a BWP handover instruction according to an embodiment of the present invention
  • Fig. 2 is a flowchart of a specific implementation of step S101 in Fig. 1;
  • FIG. 3 is a schematic diagram of a first typical application scenario of an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a second typical application scenario of an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an apparatus for processing a BWP handover instruction according to an embodiment of the present invention.
  • the existing UE cannot well filter out the falsely detected DCI indicating BWP handover, which seriously affects the communication quality with the base station.
  • the existing NR only performs a simple bit field judgment on the DCI indicating BWP handover, and sometimes the false DCI cannot be completely filtered out by the bit field judgment alone, and each bit field judgment is very important for some UEs. It is said that the processing time is too long, which affects the subsequent process scheduling. Therefore, the UE adopting the prior art may easily trigger the BWP handover procedure by mistake, which causes the UE and the base station to be out of synchronization and affects the communication performance.
  • the inventor of the present application found that after analyzing the description of the communication protocol 38.213, the UE detects the DCI indicating BWP handover to switch to the target BWP to receive the Physical Downlink Shared Channel (PDSCH for short) or send it. Between the Physical Uplink Shared Channel (PUSCH for short), the UE does not need to receive and transmit.
  • PDSCH Physical Downlink Shared Channel
  • the base station will also not send a Physical Downlink Control Channel (PDCCH for short), PDSCH or receive PUSCH to the UE through the original BWP during this period.
  • PDCH Physical Downlink Control Channel
  • the base station should consider that the UE has missed detection, and cannot directly switch to the target BWP through only one DCI. Therefore, if the base station detects that the UE has not handed over to the target BWP, the base station should be compatible with the original BWP and re-initiate the DCI indicating handover to the target BWP.
  • the UE can also confirm whether the BWP handover is reasonable.
  • this embodiment provides a method for processing a BWP handover indication, including: in response to detecting a DCI indicating a BWP handover, judging whether effective uplink and downlink scheduling occurs in the original BWP before handover to the target BWP; If it indicates that no valid uplink and downlink scheduling has occurred, switch to the target BWP.
  • the DCI of the false detection indicating the BWP handover is identified as much as possible, so as to ensure that the UE and the base station are in the same BWP and ensure the communication quality.
  • the base station will not perform uplink and downlink scheduling on the UE on the original BWP in principle during the period when the UE is handed over to the target BWP after the BWP handover is instructed. Therefore, by monitoring whether there is still uplink and downlink scheduling on the original BWP after the DCI indicating the BWP handover is detected, it can be accurately determined whether the DCI indicating the BWP handover is real and valid.
  • FIG. 1 is a flowchart of a method for processing a BWP handover indication according to an embodiment of the present invention.
  • This embodiment may be performed by the user equipment side, for example, by the UE on the user equipment side.
  • This embodiment can be applied to an outfield NR scenario, that is, a scenario in which a UE in an actual wireless environment communicates with a base station.
  • the field NR scene is different from the laboratory scene.
  • the signal environment of the field NR is usually more complicated and not as good as the signal in the laboratory environment.
  • the processing method for the BWP switching instruction provided in the following steps S101 to S103 may be executed by a chip with a BWP switching function in the user equipment, or may be executed by a baseband chip in the user equipment.
  • the method for processing a BWP handover instruction described in this embodiment may include the following steps:
  • Step S101 in response to detecting the DCI indicating BWP handover, determine whether effective uplink and downlink scheduling occurs in the original BWP before handover to the target BWP;
  • step S102 is executed, that is, switching to the target BWP.
  • step S101 If the determination result of step S101 is yes, that is, valid uplink and downlink scheduling occurs, step S103 is executed, that is, the original BWP continues to reside.
  • the original BWP refers to the BWP that the UE currently camps on, and only the BWP where the DCI indicating the BWP handover is detected is detected.
  • the target BWP indicates the BWP indicated in the DCI for BWP handover, that is, the BWP to which the UE is expected to be handed over.
  • the DCI is a UE Specific Search Space (UE Specific Search Space, USS for short) DCI, USS DCI for short.
  • the uplink and downlink scheduling includes scheduling of receiving PDCCH, receiving PDSCH and sending PUSCH.
  • receiving the PDCCH may refer to receiving other DCIs other than the currently detected DCI indicating BWP handover.
  • the other DCIs are also USS DCIs.
  • the BWP handover time indicated by the DCI indicating the BWP handover may expire before handover to the target BWP.
  • this embodiment can identify whether effective uplink and downlink scheduling occurs in different scenarios in combination with the decoding confidence and scheduling status of other DCIs on the original BWP, so as to identify the DCI that is falsely detected and indicating BWP handover as much as possible.
  • the step S101 may include the following steps:
  • Step S1011 judging whether uplink and downlink scheduling occurs in the original BWP before switching to the target BWP;
  • step S1012 is executed to determine whether the uplink and downlink scheduling is valid according to the decoding result of the uplink and downlink scheduling.
  • step S1011 after detecting the DCI indicating the BWP handover, the UE can continuously monitor whether the uplink and downlink scheduling still occurs on the original BWP before the BWP handover is actually performed.
  • the step S1011 may include the steps of: judging whether other DCIs are detected in the original BWP before switching to the target BWP; judging whether scheduling of data transmission occurs in the original BWP before switching to the target BWP.
  • the decoding result of the uplink and downlink scheduling may include whether other DCIs are detected, whether the decoding of other DCIs is successful, whether there is scheduling to receive PDSCH, and whether the PDSCH of the original BWP is actually valid.
  • the step S1012 may include the step of: if no other DCI is detected in the original BWP before switching to the target BWP, but data transmission scheduling occurs, the original BWP receives the data ; Determine whether the uplink and downlink scheduling is valid according to the decoding result of the data.
  • the DCI indicating the scheduling of the data transmission may be sent a time slot before the detection of the DCI indicating the BWP handover.
  • the data transmission may include PDSCH, and may also include PUSCH.
  • the decoding result of the data indicates that the data is valid, it can be determined that the uplink and downlink scheduling is valid. Otherwise, that is, if the decoding result of the data indicates that the data is invalid, it can be determined that the uplink and downlink scheduling is invalid.
  • the valid data may include at least any one of the following situations: the received PDSCH is valid; the other detected DCIs are successfully decoded.
  • the UE before switching to the target BWP, the UE only detects the DCI indicating the BWP switching described in step S101, but there are other DCIs in the previous slot (slot) indicating that there is uplink and downlink scheduling in the subsequent slot, and the indicated uplink and downlink
  • the PDSCH and PUSCH corresponding to the row scheduling are in the middle of the BWP handover.
  • the UE is currently camping on BWP1 and detects DCI indicating BWP handover in the received PDCCH. It is assumed that the DCI indicating the BWP handover indicates that the target BWP is BWP2, and the time for performing the BWP handover is N2 (corresponding to uplink) and N0 (corresponding to downlink).
  • the UE needs to switch to BWP2 in uplink to receive PUSCH at BWP2;
  • the UE implementing this embodiment needs to continue to monitor whether valid uplink and downlink scheduling still occurs on BWP1 during the above k2' and k0' periods.
  • the UE receives other DCIs indicating that there will be uplink and downlink scheduling in the time slot before receiving the time slot of the PDCCH.
  • the UE implementing this embodiment may determine that the DCI detected in step S101 indicating the BWP handover is unreliable.
  • the UE may try to continue to camp on the original BWP to receive the corresponding PDSCH, and retain the BWP handover information in the DCI detected in step S101 indicating the BWP handover.
  • the received PDSCH is decoded correctly, it can be confirmed that the received PDSCH is valid.
  • the received PDSCH is decoded incorrectly, but measure the PDSCH Reference Signal Received Power (RSRP), Received Signal Strength Indication (RSSI) and Signal-to-Noise Ratio (SIGNAL NOISE RATIO, SNR) or S/N) if the measurement result is greater than the corresponding threshold value, it can be confirmed that the received PDSCH is valid.
  • RSRP Reference Signal Received Power
  • RSSI Received Signal Strength Indication
  • SIGNAL NOISE RATIO SIGNAL NOISE RATIO, SNR
  • S/N Signal-to-Noise Ratio
  • the UE confirms that the DCI indicating the BWP handover has been falsely detected, and continues to reside in the original BWP; otherwise, the UE directly switches to Target BWP.
  • the UE may further confirm whether to continue camping on the target BWP according to the scheduling situation of the target cell.
  • the UE can receive the PDSCH on the target BWP, and judge whether this BWP handover is reasonable according to the decoding result of the PDSCH and whether related parameters such as RSRP, RSSI, and SNR are within a reasonable range. If the decoding result of the PDSCH and each parameter are within a reasonable range, the UE confirms that the handover action is reasonable, and therefore continues to reside in the target BWP. If the decoding result of the PDSCH and the parameters are not within a reasonable range, the UE confirms that the switching action is unreasonable, and thus switches back to the original BWP.
  • the UE may temporarily not send the PUSCH indicated by the DCI, but be in a Hybrid Automatic Repeat reQuest (HARQ for short) period of the target BWP. If the DCI for retransmission of the PUSCH sent by the base station is received within the HARQ period, or other USS DCIs are detected, the UE can confirm that the handover is reasonable and therefore continue to camp on the target BWP. If the above DCI indicating retransmission of the PUSCH is not received within the HARQ period, it is confirmed that the handover is unreasonable, and the UE switches back to the original BWP.
  • HARQ Hybrid Automatic Repeat reQuest
  • the step S1012 may include the step of: if other DCIs are detected in the original BWP before switching to the target BWP and scheduling of data transmission occurs, comparing the other DCIs with the indicated BWP Decoding confidence for switched DCI.
  • the decoding confidences of the other DCIs are greater than the decoding confidences of the DCI indicating the BWP handover, and the difference between the two is greater than a first preset threshold, it is determined that the uplink and downlink scheduling is valid.
  • the decoding confidences of the other DCIs are lower than the decoding confidences of the DCI indicating the BWP handover, and the difference between the two is greater than the first preset threshold, it is determined that the uplink and downlink scheduling is invalid.
  • the data is received at the original BWP, and the data is received at the original BWP.
  • the decoding result of the data determines whether the uplink and downlink scheduling is valid.
  • the data transmission may include PDSCH, and may also include PUSCH.
  • the decoding result of the data indicates that the data is valid, it can be determined that the uplink and downlink scheduling is valid. Otherwise, that is, if the decoding result of the data indicates that the data is invalid, it can be determined that the uplink and downlink scheduling is invalid.
  • the valid data may include at least any one of the following situations: the received PDSCH is valid; the other detected DCIs are successfully decoded.
  • the UE before switching to the target BWP, in addition to detecting the DCI indicating the BWP switching described in step S101, the UE also detects other DCIs, and the corresponding PDSCH and PUSCH are in the middle of the BWP switching.
  • the other DCI may include DCI in format 0-0, DCI in format 0-1, DCI in format 1-0, and DCI in format 1-1.
  • the UE is currently camping on BWP1 and detects DCI indicating BWP handover in the received PDCCH. It is assumed that the DCI indicating the BWP handover indicates that the target BWP is BWP2, and the time for performing the BWP handover is N2 (corresponding to uplink) and N0 (corresponding to downlink).
  • the UE needs to switch to BWP2 in uplink to receive PUSCH at BWP2;
  • the UE implementing this embodiment needs to continue to monitor whether valid uplink and downlink scheduling still occurs on BWP1 during the above k2' and k0' periods.
  • the UE compares the decoding confidence of the other DCI with the decoding confidence of the DCI indicating BWP handover detected in step S101.
  • the UE determines that the DCI indicating BWP handover is falsely detected, and then directly discards the DCI indicating BWP handover detected in step S101.
  • the decoding confidence of the other DCIs is far greater than the decoding confidence of the DCI indicating the BWP handover means that the decoding confidence of the other DCIs is greater than the decoding confidence of the DCI indicating the BWP handover, and the two The deviation is greater than the first preset threshold.
  • the first preset threshold may be 3 decibels (decibel, dB for short).
  • the UE determines that the detected DCI indicating BWP handover is more credible, directly discards other DCIs and attempts to switch to the target BWP. Further, after switching to the target BWP, the UE can observe the target BWP for a period of time (that is, the following preset period). If the decoding result of the USS DCI or PDSCH detected during this period indicates that the PDSCH actually exists, the UE can always Residing on the target BWP.
  • the UE can try to actively switch back to the original BWP.
  • the period of time may be determined according to actual needs, such as being shorter than the duration of the BWP-inactive timer (BWP-inactive timer) indicated in the DCI indicating the BWP handover.
  • the UE may try to continue camping on the original BWP to receive the corresponding PDSCH, and keep the detected DCI indicating BWP handover in step S101 BWP handover information.
  • the received PDSCH is decoded correctly, it can be confirmed that the received PDSCH is valid.
  • the received PDSCH is decoded incorrectly, but the measured results of RSRP, RSSI, and SNR of the PDSCH are greater than the respective corresponding thresholds, it can be confirmed that the received PDSCH is valid.
  • the UE confirms that the DCI indicating the BWP handover has been falsely detected, and continues to reside in the original BWP; otherwise, the UE directly switches to Target BWP.
  • the UE may further confirm whether to continue camping on the target BWP according to the scheduling situation of the target cell.
  • the UE can receive the PDSCH on the target BWP, and judge whether this BWP handover is reasonable according to the decoding result of the PDSCH and whether related parameters such as RSRP, RSSI, and SNR are within a reasonable range. If the decoding result of PDSCH and each parameter are within a reasonable range, the UE confirms that the handover action is reasonable, and therefore continues to reside in the target BWP. If the decoding result of the PDSCH and the parameters are not within a reasonable range, the UE confirms that the switching action is unreasonable, and thus switches back to the original BWP.
  • the UE may temporarily not send the PUSCH indicated by the DCI, but be within one HARQ cycle of the target BWP. If the DCI for retransmission of the PUSCH sent by the base station is received within the HARQ period, or other USS DCIs are detected, the UE can confirm that the handover is reasonable and therefore continue to camp on the target BWP. If the above-mentioned DCI indicating retransmission of the PUSCH is not received within the HARQ period, it is determined that the switching is not reasonable, and the UE switches back to the original BWP.
  • the first application scenario can judge whether the uplink and downlink scheduling is valid when the current time slot of the DCI indicating BWP handover is detected, while the second application scenario requires more time slots to judge.
  • step S101 if only the DCI indicating the BWP handover detected in step S101 is detected before the BWP handover is performed, and there is no scheduling of PDSCH reception and PUSCH transmission in the subsequent time slots, it can be determined that no valid DCI has occurred. Up and down scheduling. At this point, the UE may attempt to handover to the target BWP.
  • the processing logic of the UE after handover to the target BWP is further rationalized according to the decoding confidence level of the DCI indicating the BWP handover.
  • the decoding confidence of the DCI indicating BWP handover is greater than or equal to the second preset threshold, it can be considered that the DCI indicating BWP handover has higher reliability sex.
  • the UE is directly handed over to the target BWP.
  • the specific value of the second preset threshold may be set according to the simulation result when the UE leaves the factory.
  • the UE may further perform the step of: judging whether DCI or valid PDSCH is received in the target BWP within a preset period; If DCI and valid PDSCH are received, switch back to the original BWP; if DCI or valid PDSCH is received within the preset period, continue to camp on the target BWP.
  • the preset period may be shorter than the duration of the BWP inactivation timer, wherein the BWP inactivation timer is indicated by the DCI indicating BWP switching.
  • receiving the DCI at the target BWP may refer to detecting the DCI of the USS.
  • the valid PDSCH may refer to the correct decoding of the PDSCH. Or, although the PDSCH is decoded incorrectly, the measurement results of parameters such as RSRP, RSSI, and SNR of the PDSCH are greater than the threshold value.
  • the UE may first attempt to switch to the target BWP, and then determine the next processing logic according to the specific type of the DCI indicating the BWP switching.
  • the UE may further perform the step of receiving PDSCH at the target BWP and decoding; if the decoding result indicates that the PDSCH is valid, then continue to reside in the target BWP; if the decoding result indicates that the PDSCH is invalid, then switch back to the original BWP.
  • DCI indicating the BWP switching is downlink DCI (such as DCI in format 1-1)
  • the UE may further perform the step of receiving PDSCH at the target BWP and decoding; if the decoding result indicates that the PDSCH is valid, then continue to reside in the target BWP; if the decoding result indicates that the PDSCH is invalid, then switch back to the original BWP.
  • a valid PDSCH may mean that the decoding of the PDSCH is correct. Or, although the PDSCH is decoded incorrectly, the measurement results of parameters such as RSRP, RSSI, and SNR of the PDSCH are greater than the threshold value.
  • the UE may further perform the step of suspending the switch to the target BWP Send PUSCH; if the DCI indicating PUSCH retransmission is received or other DCI is detected within the HARQ cycle, it will continue to reside in the target BWP; if the DCI indicating PUSCH retransmission has not been received after the HARQ cycle or other DCIs have been detected DCI, then switch back to the original BWP.
  • the other DCIs may be DCIs of other USSs.
  • the processing method in this embodiment may further include the step of: if the DCI indicating switching to the target BWP is received again before switching to the target BWP, Then switch to the target BWP immediately.
  • the processing method in this embodiment may further include the step of: setting at least part of the bits of the DCI indicating BWP handover Validity detection is performed in the domain; if the validity detection is passed, it is determined whether effective uplink and downlink scheduling occurs in the original BWP before switching to the target BWP.
  • the falsely detected DCI indicating the BWP handover is identified as much as possible, so as to ensure that the UE and the base station are in the same BWP, and the communication quality is guaranteed. .
  • the base station will not perform uplink and downlink scheduling on the UE on the original BWP in principle during the period when the UE is handed over to the target BWP after the BWP handover is instructed. Therefore, by monitoring whether there is still uplink and downlink scheduling on the original BWP after the DCI indicating the BWP handover is detected, it can be accurately determined whether the DCI indicating the BWP handover is real and valid.
  • the solution of the present invention can effectively improve the problem of losing contact between the UE and the base station due to direct switching of the BWP after the UE mistakenly detects the DCI indicating the switching of the BWP, and also preserves the integrity of the scheduling to the greatest extent.
  • FIG. 5 is a schematic structural diagram of an apparatus for processing a BWP handover instruction according to an embodiment of the present invention.
  • the apparatus 5 for processing a BWP handover instruction described in this embodiment may be used to implement the methods and technical solutions described in the embodiments described in FIG. 1 to FIG. 4 .
  • the apparatus 5 for processing a BWP handover instruction described in this embodiment may include: a judgment module 51 , in response to detecting the DCI indicating the BWP handover, to judge whether a valid BWP occurs before the handover to the target BWP. Uplink and downlink scheduling; the switching module 52, if the judgment result indicates that no valid uplink and downlink scheduling has occurred, switch to the target BWP.
  • the above-mentioned processing apparatus for the BWP handover instruction may correspond to a chip with a BWP handover function in the user equipment, or to a chip with a data processing function, such as a system-on-a-chip (System-On-a-Chip for short). SOC), baseband chip, etc.; or a chip module including a chip with a BWP switching function in the user equipment; or a chip module with a data processing function chip, or a user equipment.
  • a chip with a BWP handover function such as a system-on-a-chip (System-On-a-Chip for short). SOC), baseband chip, etc.
  • a chip module including a chip with a BWP switching function in the user equipment or a chip module with a data processing function chip, or a user equipment.
  • each module/unit included in each device and product described in the above embodiments it may be a software module/unit, a hardware module/unit, or a part of a software module/unit, a part of which is a software module/unit. is a hardware module/unit.
  • each module/unit included therein may be implemented by hardware such as circuits, or at least some of the modules/units may be implemented by a software program.
  • Running on the processor integrated inside the chip the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be They are all implemented by hardware such as circuits, and different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some of the modules/units can be implemented by software programs.
  • the software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the terminal, each module contained in it
  • the units/units may all be implemented in hardware such as circuits, and different modules/units may be located in the same component (eg, chip, circuit module, etc.) or in different components in the terminal, or at least some of the modules/units may be implemented by software programs Realization, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented in hardware such as circuits.
  • An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, and the computer program is executed by a processor
  • the storage medium may include a computer-readable storage medium such as a non-volatile memory or a non-transitory memory.
  • the storage medium may include ROM, RAM, magnetic or optical disks, and the like.
  • An embodiment of the present invention further provides another apparatus for processing a BWP handover instruction, including a memory and a processor, where the memory stores a computer program that can run on the processor, and the processor runs the computer During the program, the steps of the processing method for the BWP handover instruction provided by the above-mentioned embodiments corresponding to FIG. 1 to FIG. 4 are executed.
  • the technical solution of the present invention can be applied to 5G (5 generation) communication systems, 4G and 3G communication systems, and various communication systems that will evolve later, such as 6G and 7G.
  • the technical solution of the present invention is also applicable to different network architectures, including but not limited to relay network architectures, dual-link architectures, and Vehicle-to-Everything (vehicle-to-anything communication) architectures.
  • the 5G CN described in the embodiments of this application may also be referred to as a new core network (new core), or 5G NewCore, or a next generation core network (next generation core, NGC), or the like.
  • 5G-CN is set up independently of an existing core network, such as an evolved packet core (EPC).
  • EPC evolved packet core
  • a base station (base station, BS) in the embodiments of the present application which may also be referred to as base station equipment, is a device deployed in a wireless access network to provide a wireless communication function.
  • the devices that provide base station functions in 2G networks include base transceiver stations (BTS) and base station controllers (BSCs).
  • the devices that provide base station functions in 3G networks include Node B (NodeB) and wireless
  • the network controller radio network controller, RNC
  • the equipment that provides the base station function in the 4G network includes the evolved NodeB (evolved NodeB, eNB), in the wireless local area network (wireless local area network, WLAN), the device that provides the base station function
  • the equipment is an access point (AP)
  • the equipment that provides base station functions in 5G New Radio (NR) includes the continuously evolving Node B (gNB), and the equipment that provides base station functions in new communication systems in the future Wait.
  • the terminal in the embodiments of this application may refer to various forms of user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (mobile station, MS), remote station, remote terminal, Mobile equipment, user terminal, terminal equipment, wireless communication equipment, user agent or user equipment.
  • user equipment user equipment
  • MS mobile station
  • remote station remote terminal
  • Mobile equipment user terminal
  • terminal equipment wireless communication equipment
  • user agent user equipment
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or future evolved Public Land Mobile Networks (PLMN)
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • a terminal device, etc. is not limited in this embodiment of the present application.
  • the embodiment of the present application defines the unidirectional communication link from the access network to the terminal as the downlink, the data transmitted on the downlink is the downlink data, and the transmission direction of the downlink data is called the downlink direction;
  • the unidirectional communication link is the uplink, the data transmitted on the uplink is the uplink data, and the transmission direction of the uplink data is called the uplink direction.
  • connection in the embodiments of the present application refers to various connection modes such as direct connection or indirect connection, so as to realize communication between devices, which is not limited in the embodiments of the present application.
  • Network and “system” appearing in the embodiments of this application express the same concept, and a communication system is a communication network.
  • the processor may be a central processing unit (central processing unit, CPU for short), and the processor may also be other general-purpose processors, digital signal processors (digital signal processor, DSP for short) , application specific integrated circuit (ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory Fetch memory
  • direct memory bus random access memory direct rambus RAM, DR RAM
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that a computer can access, or a data storage device such as a server, a data center, or the like containing one or more sets of available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media.
  • the semiconductor medium may be a solid state drive.
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
  • the disclosed method, apparatus and system may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included individually, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.
  • the above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium.
  • the above-mentioned software functional unit is stored in a storage medium, and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the methods described in the various embodiments of the present invention.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM for short), Random Access Memory (RAM for short), magnetic disk or CD, etc. that can store program codes medium.

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Abstract

一种针对BWP切换指示的处理方法及装置、计算机可读存储介质，所述方法包括：响应于检测到指示BWP切换的DCI，判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度；若判断结果表明未发生有效的上下行调度，则切换至所述目标BWP。通过本发明方案能够更为精准地过滤掉虚检的指示BWP切换的DCI，确保UE始终与基站处于同一BWP，改善并保证通信质量。

Description

针对BWP切换指示的处理方法及装置、计算机可读存储介质
本申请要求2021年3月23日提交中国专利局、申请号为202110310740.5、发明名称为“针对BWP切换指示的处理方法及装置、计算机可读存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，具体地涉及一种针对BWP切换指示的处理方法及装置、计算机可读存储介质。
背景技术
由于外场新无线(New Radio，简称NR，也称新空口)所处频带较高，对信道环境更敏感，NR某些频带与长期演进(Long Term Evolution，简称LTE)存在共享时频域资源，以及外场同频小区较多等特点。运行于实际无线环境中的用户设备(User Equipment，简称UE)的下行控制信息(Downlink Control Information，简称DCI)误检率普遍较高。如虚检到指示部分带宽(Bandwidth Part，简称BWP)的DCI。
由于BWP切换可能导致UE和基站失联，如果UE虚捡到指示BWP切换的DCI，则UE整个流程将发生变化，进而影响整个通信性能。
因此对于DCI中指示BWP切换的场景，UE的处理需要更加慎重。但采用现有技术的UE并不能很好的过滤掉虚检的指示BWP切换的DCI，严重影响与基站的通信质量。
发明内容
本发明解决的技术问题是如何更为精准地过滤掉虚检的指示 BWP切换的DCI，确保UE始终与基站处于同一BWP，改善并保证通信质量。
为解决上述技术问题，本发明实施例提供一种针对BWP切换指示的处理方法，包括：响应于检测到指示BWP切换的DCI，判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度；若判断结果表明未发生有效的上下行调度，则切换至所述目标BWP。
可选的，所述处理方法还包括：若判断结果表明发生有效的上下行调度，则继续驻留在所述原BWP。
可选的，所述处理方法还包括：若在切换至目标BWP之前再次接收到指示切换至所述目标BWP的DCI，则立即切换至所述目标BWP。
可选的，所述判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度包括：判断在切换至目标BWP之前在原BWP是否发生上下行调度；若判断结果表明发生上下行调度，则根据所述上下行调度的译码结果判断所述上下行调度是否有效。
可选的，所述判断在切换至目标BWP之前在原BWP是否发生上下行调度包括：判断在切换至目标BWP之前在原BWP是否检测到其他DCI；判断在切换至目标BWP之前在原BWP是否发生数据传输的调度。
可选的，所述根据所述上下行调度的译码结果判断所述上下行调度是否有效包括：若在切换至目标BWP之前未在原BWP检测到其他DCI，但发生数据传输的调度，则在所述原BWP接收所述数据；根据对所述数据的译码结果判断所述上下行调度是否有效。
可选的，指示所述数据传输的调度的DCI在检测到指示BWP切换的DCI之前的时隙发送。
可选的，所述根据所述上下行调度的译码结果判断所述上下行调度是否有效包括：若在切换至目标BWP之前在原BWP检测到其他 DCI，且发生数据传输的调度，则比较所述其他DCI与所述指示BWP切换的DCI的译码置信度；若所述其他DCI的译码置信度大于所述指示BWP切换的DCI的译码置信度，且两者的偏差大于第一预设阈值，则确定所述上下行调度有效；若所述其他DCI的译码置信度小于所述指示BWP切换的DCI的译码置信度，且两者的偏差大于所述第一预设阈值，则确定所述上下行调度无效；若所述其他DCI的译码置信度与所述指示BWP切换的DCI的译码置信度之间的偏差小于所述第一预设阈值，则在所述原BWP接收所述数据，并根据对所述数据的译码结果判断所述上下行调度是否有效。
可选的，所述根据对所述数据的译码结果判断所述上下行调度是否有效包括：若所述数据的译码结果表明所述数据有效，则确定所述上下行调度有效；若所述数据的译码结果表明所述数据无效，确定所述上下行调度无效。
可选的，所述数据有效至少包括以下任一种情况：接收到的PDSCH有效；检测到的其他DCI译码成功。
可选的，在切换至所述目标BWP之后，所述处理方法还包括：判断预设周期内是否在所述目标BWP接收到DCI或者有效的PDSCH；若超过所述预设周期仍未接收到DCI和有效的PDSCH，则切换回所述原BWP；若在所述预设周期内接收到DCI或者有效的PDSCH，则继续驻留在所述目标BWP。
可选的，所述指示BWP切换的DCI的译码置信度大于等于第二预设阈值。
可选的，所述预设周期短于BWP非激活定时器的时长，其中，所述BWP非激活定时器通过所述指示BWP切换的DCI指示。
可选的，若所述指示BWP切换的DCI为下行DCI，则在切换至所述目标BWP之后，所述处理方法还包括：在所述目标BWP接收PDSCH并译码；若译码结果表明所述PDSCH有效，则继续驻留在 所述目标BWP；若译码结果表明所述PDSCH无效，则切换回所述原BWP。
可选的，若所述指示BWP切换的DCI为上行DCI，则在切换至所述目标BWP之后，所述处理方法还包括：暂缓在所述目标BWP发送PUSCH；若在HARQ周期内接收到指示PUSCH重传的DCI或检测到其他DCI，则继续驻留在所述目标BWP；若超过HARQ周期仍未接收到指示PUSCH重传的DCI或检测到其他DCI，则切换回所述原BWP。
可选的，所述指示BWP切换的DCI的译码置信度小于第二预设阈值。
可选的，所述DCI为USS DCI。
可选的，在判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度之前，所述处理方法还包括：对所述指示BWP切换的DCI的至少部分位域进行合法性检测；若合法性检测通过，则判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度。
为解决上述技术问题，本发明实施例还提供一种针对BWP切换指示的处理装置，包括：判断模块，响应于检测到指示BWP切换的DCI，判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度；切换模块，若判断结果表明未发生有效的上下行调度，则切换至所述目标BWP。
为解决上述技术问题，本发明实施例还提供一种计算机可读存储介质，所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时执行上述方法的步骤。
为解决上述技术问题，本发明实施例还提供一种针对BWP切换指示的处理装置，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执 行上述方法的步骤。
与现有技术相比，本发明实施例的技术方案具有以下有益效果：
本发明实施例提供一种针对BWP切换指示的处理方法，包括：响应于检测到指示BWP切换的DCI，判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度；若判断结果表明未发生有效的上下行调度，则切换至所述目标BWP。
较之NR现有关于指示BWP切换的DCI只进行简单的位域判断的技术方案，本实施方案通过结合检测到指示BWP切换后在原BWP上的后续调度情况，尽最大可能识别出虚检的指示BWP切换的DCI，保证UE与基站处于同一个BWP，保证通信质量。具体而言，结合协议描述可以确定，在指示BWP切换后至UE切换至目标BWP期间，基站原则上不会再在原BWP上对UE进行上下行调度。因此，通过监测检测到指示BWP切换的DCI后在原BWP上是否还有上下行调度，能够准确判别该指示BWP切换的DCI是否真实有效。
进一步，在切换至所述目标BWP之后，所述处理方法还包括：判断预设周期内是否在所述目标BWP接收到DCI或者有效的PDSCH；若超过所述预设周期仍未接收到DCI和有效的PDSCH，则切换回所述原BWP；若在所述预设周期内接收到DCI或者有效的PDSCH，则继续驻留在所述目标BWP。由此，根据切换到的目标小区的调度情况，同样可以确认本次BWP切换是否合理。
进一步，若所述指示BWP切换的DCI为下行DCI，则在切换至所述目标BWP之后，所述处理方法还包括：在所述目标BWP接收PDSCH并译码；若译码结果表明所述PDSCH有效，则继续驻留在所述目标BWP；若译码结果表明所述PDSCH无效，则切换回所述原BWP。由此，根据切换到的目标小区的调度情况，同样可以确认本次BWP切换是否合理。
进一步，若所述指示BWP切换的DCI为上行DCI，则在切换至 所述目标BWP之后，所述处理方法还包括：暂缓在所述目标BWP发送PUSCH；若在HARQ周期内接收到指示PUSCH重传的DCI或检测到其他DCI，则继续驻留在所述目标BWP；若超过HARQ周期仍未接收到指示PUSCH重传的DCI或检测到其他DCI，则切换回所述原BWP。由此，根据切换到的目标小区的调度情况，同样可以确认本次BWP切换是否合理。
附图说明
图1是本发明实施例一种针对BWP切换指示的处理方法的流程图；
图2是图1中步骤S101的一个具体实施方式的流程图；
图3是本发明实施例第一个典型应用场景的示意图；
图4是本发明实施例第二个典型应用场景的示意图；
图5是本发明实施例一种针对BWP切换指示的处理装置的结构示意图。
具体实施方式
如背景技术所言，现有UE并不能很好的过滤掉虚检的指示BWP切换的DCI，严重影响与基站的通信质量。
具体而言，NR现有关于指示BWP切换的DCI只进行了简单的位域判断，有时虚捡的DCI单凭位域判断并不能被完全过滤掉，且每个位域判断对于某些UE来说处理时间太长，影响后续流程调度。因此，采用现有技术的UE会容易误触发BWP切换流程，导致UE和基站不同步，影响通信性能。
为解决上述技术问题，本申请发明人经过分析通信协议38.213的描述发现，从UE检测到指示BWP切换的DCI到切到目标BWP以接收物理下行共享信道(Physical Downlink Shared Channel，简称PDSCH)或者发送物理上行共享信道(Physical Uplink Shared  Channel，简称PUSCH)之间，UE将不需要进行接收和发送。
因此，可以合理推测基站同样不会在此期间通过原BWP向UE发送物理下行控制信道(Physical Downlink Control Channel，简称PDCCH)、PDSCH或者接收PUSCH。
同时基站应该要考虑UE存在漏检的情况，不能只通过一个DCI就直接切到目标BWP。因此，如果基站检测到UE没有切到目标BWP，则基站应该需要兼容到原BWP再次发起该指示切换到目标BWP的DCI。
另外根据切到目标BWP对应小区(即目标小区)的调度情况，UE也可以确认该BWP切换是否合理。
基于上述分析，本实施方案提供一种针对BWP切换指示的处理方法，包括：响应于检测到指示BWP切换的DCI，判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度；若判断结果表明未发生有效的上下行调度，则切换至所述目标BWP。
本实施方案通过结合检测到指示BWP切换后在原BWP上的后续调度情况，尽最大可能识别出虚检的指示BWP切换的DCI，保证UE与基站处于同一个BWP，保证通信质量。具体而言，结合协议描述可以确定，在指示BWP切换后至UE切换至目标BWP期间，基站原则上不会再在原BWP上对UE进行上下行调度。因此，通过监测检测到指示BWP切换的DCI后在原BWP上是否还有上下行调度，能够准确判别该指示BWP切换的DCI是否真实有效。
为使本发明的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
图1是本发明实施例一种针对BWP切换指示的处理方法的流程图。
本实施方案可以由用户设备侧执行，如由用户设备侧的UE执行。
本实施方案可以应用于外场NR场景，即处于实际无线环境中的UE与基站进行通信的场景。外场NR场景区别于实验室场景，外场NR的信号环境通常较为复杂，不如实验室环境里的信号好。
在具体实施中，下述步骤S101～步骤S103所提供的针对BWP切换指示的处理方法可以由用户设备中的具有BWP切换功能的芯片执行，也可以由用户设备中的基带芯片执行。
具体地，参考图1，本实施例所述针对BWP切换指示的处理方法可以包括如下步骤：
步骤S101，响应于检测到指示BWP切换的DCI，判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度；
若步骤S101的判断结果为否，也即未发生有效的上下行调度，则执行步骤S102，即切换至所述目标BWP。
若步骤S101的判断结果为是，也即发生有效的上下行调度，则执行步骤S103，即继续驻留在所述原BWP。
进一步，原BWP是指UE当前驻留的BWP，仅检测到指示BWP切换的DCI时所处的BWP。目标BWP指示BWP切换的DCI中指示的BWP，即希望UE切换至的BWP。
进一步，所述DCI为UE特定搜索空间(UE Specific Search Space，简称USS)DCI，简称USS DCI。
进一步，上下行调度包括接收PDCCH、接收PDSCH以及发送PUSCH的调度。当前述任一调度经译码等判定为有效时，即确定发生有效的上下行调度。例如，接收PDCCH可以指接收到其他DCI，所述其他DCI是指除了当前检测到的指示BWP切换的DCI之外的DCI。所述其他DCI同样为USS DCI。
进一步，在切换至目标BWP之前可以截止至指示BWP切换的DCI指示的BWP切换时间到期。
进一步，本实施方案可以结合原BWP上其他DCI的译码置信度及调度情况，分不同场景识别是否发生有效的上下行调度，从而尽最大可能识别出虚检的指示BWP切换的DCI。
在一个具体实施中，参考图2，所述步骤S101可以包括如下步骤：
步骤S1011，判断在切换至目标BWP之前在原BWP是否发生上下行调度；
若步骤S1011的判断结果为是，也即发生上下行调度，则执行步骤S1012，根据所述上下行调度的译码结果判断所述上下行调度是否有效。
具体地，步骤S1011中，自检测到指示BWP切换的DCI后，在真正执行BWP切换之前，UE可以持续监测原BWP上是否还发生上下行调度。
所述步骤S1011可以包括步骤：判断在切换至目标BWP之前在原BWP是否检测到其他DCI；判断在切换至目标BWP之前在原BWP是否发生数据传输的调度。
相应的，上下行调度的译码结果可以包括是否检测到其他DCI、对其他DCI的译码是否成功、是否有接收PDSCH的调度以及原BWP的PDSCH是否真实有效。
在第一个典型的应用场景中，所述步骤S1012可以包括步骤：若在切换至目标BWP之前未在原BWP检测到其他DCI，但发生数据传输的调度，则在所述原BWP接收所述数据；根据对所述数据的译码结果判断所述上下行调度是否有效。
具体而言，指示所述数据传输的调度的DCI可以在检测到指示BWP切换的DCI之前的时隙发送。
进一步，所述数据传输可以包括PDSCH，还可以包括PUSCH。
若所述数据的译码结果表明所述数据有效，则可以确定所述上下行调度有效。否则，即若所述数据的译码结果表明所述数据无效，则可以确定所述上下行调度无效。
例如，所述数据有效至少可以包括以下任一种情况：接收到的PDSCH有效；检测到的其他DCI译码成功。
本应用场景中，在切换到目标BWP之前，UE仅检测到步骤S101所述指示BWP切换的DCI，但之前的时隙(slot)存在其他DCI指示后续时隙存在上下行调度，且指示的上下行调度对应的PDSCH和PUSCH在BWP切换中间。
以图3所示调度情况例，UE当前驻留在BWP1，并在接收到的PDCCH中检测到指示BWP切换的DCI。假设该指示BWP切换的DCI指示目标BWP为BWP2，且执行BWP切换的时间为N2(对应上行)和N0(对应下行)。如果该指示BWP切换的DCI是真实有效的，则自检测到该指示BWP切换的DCI起经过时间k2’＝N2时，UE上行需要切换到BWP2以在BWP2接收PUSCH；自检测到该指示BWP切换的DCI起经过时间k0’＝N0时，UE下行需要切换到BWP2以在BWP2接收PDSCH。
为过滤虚检的指示BWP切换的DCI，执行本实施方案的UE在上述k2’和k0’期间需要继续监测在BWP1上是否还发生了有效的上下行调度。而在本应用场景中，UE在接收到PDCCH的时隙之前的时隙就接收到其他DCI指示后续会有上下行调度。假设所述其他DCI指示在时间段k0＝[1,(k0’-1)]内会有接收PDSCH调度，在时间段k2＝[1,(k2’-1)]内会有发送PUSCH调度，则执行本实施方案的UE可以确定步骤S101检测到的指示BWP切换的DCI存在不可靠性。
进一步，UE可以尝试继续驻留在原BWP以接收相应的PDSCH，并保留步骤S101所检测到的指示BWP切换的DCI中的BWP切换信息。
进一步，如果接收到的PDSCH译码正确，则可以确认接收到的PDSCH有效。
如果接收到的PDSCH译码错误，但测量PDSCH的参考信号接收功率(Reference Signal Received Power，简称RSRP)、接收信号强度指示(Received Signal Strength Indication，简称RSSI)以及信噪比(SIGNAL NOISE RATIO，SNR or S/N)的测量结果大于各自对应的门限值，则可以确认接收到的PDSCH有效。
进一步，如果未接收到PDSCH，但检测到其他USS DCI且译码成功，则同样可以确认在原BWP发生有效的上下行调度。
因此，在本应用场景中，若接收到的PDSCH有效，或者检测到其他USS DCI且译码成功，UE确认虚检到指示BWP切换的DCI，并继续驻留在原BWP；否则，UE直接切换到目标BWP。
进一步，在切换到目标BWP后，UE可以进一步根据目标小区的调度情况确认是否继续驻留在目标BWP。
例如，如果步骤S101检测到的指示BWP切换的DCI为格式(format)1-1，即下行DCI。则UE可以在目标BWP上接收PDSCH，根据PDSCH的译码结果以及RSRP、RSSI和SNR等相关参数是否属于合理范围来判断本次BWP切换是否合理。如果PDSCH的译码结果以及各参数属于合理范围，则UE确认切换动作合理，因而继续驻留在目标BWP。如果PDSCH的译码结果以及各参数不属于合理范围，则UE确认切换动作不合理，因而切换回原BWP。
又例如，如果步骤S101检测到的指示BWP切换的DCI为格式(format)0-1，即上行DCI。则UE可以暂不发送DCI指示的PUSCH，而是处于目标BWP一个混合自动重传请求(Hybrid Automatic Repeat reQuest，简称HARQ)周期内。如果该在HARQ周期内接收到基站发送的重传该PUSCH的DCI，或者检测到其他USS DCI，则UE可以确认切换合理，因而继续驻留在目标BWP。如果在HARQ周期内 没有收到上述指示重传PUSCH的DCI，则确认切换不合理，UE重新切换回原BWP。
在第二个典型的应用场景中，所述步骤S1012可以包括步骤：若在切换至目标BWP之前在原BWP检测到其他DCI，且发生数据传输的调度，则比较所述其他DCI与所述指示BWP切换的DCI的译码置信度。
若所述其他DCI的译码置信度大于所述指示BWP切换的DCI的译码置信度，且两者的偏差大于第一预设阈值，则确定所述上下行调度有效。
若所述其他DCI的译码置信度小于所述指示BWP切换的DCI的译码置信度，且两者的偏差大于所述第一预设阈值，则确定所述上下行调度无效。
若所述其他DCI的译码置信度与所述指示BWP切换的DCI的译码置信度之间的偏差小于所述第一预设阈值，则在所述原BWP接收所述数据，并根据对所述数据的译码结果判断所述上下行调度是否有效。
具体而言，所述数据传输可以包括PDSCH，还可以包括PUSCH。
若所述数据的译码结果表明所述数据有效，则可以确定所述上下行调度有效。否则，即若所述数据的译码结果表明所述数据无效，则可以确定所述上下行调度无效。
例如，所述数据有效至少可以包括以下任一种情况：接收到的PDSCH有效；检测到的其他DCI译码成功。
进一步，译码置信度可以基于信噪比表征。
本应用场景中，在切换到目标BWP之前，除了检测到步骤S101所述指示BWP切换的DCI外，UE还检测到其他DCI，且对应的PDSCH和PUSCH在BWP切换中间。
所述其他DCI可以包括格式0-0的DCI、格式0-1的DCI、格式1-0的DCI以及格式1-1的DCI。
以图4所示调度情况为例，UE当前驻留在BWP1，并在接收到的PDCCH中检测到指示BWP切换的DCI。假设该指示BWP切换的DCI指示目标BWP为BWP2，且执行BWP切换的时间为N2(对应上行)和N0(对应下行)。如果该指示BWP切换的DCI是真实有效的，则自检测到该指示BWP切换的DCI起经过时间k2’＝N2时，UE上行需要切换到BWP2以在BWP2接收PUSCH；自检测到该指示BWP切换的DCI起经过时间k0’＝N0时，UE下行需要切换到BWP2以在BWP2接收PDSCH。
为过滤虚检的指示BWP切换的DCI，执行本实施方案的UE在上述k2’和k0’期间需要继续监测在BWP1上是否还发生了有效的上下行调度。而在本应用场景中，UE检测在时间段k0＝[1,(k0’-1)]内是否在BWP1上接收到调度PDSCH的其他DCI，以及检测在时间段k2＝[1,(k2’-1)]内是否在BWP1上接收到调度PUSCH的其他DCI。
进一步，假设本应用场景中UE在时间段k0和k2内检测到其他DCI，则UE比较该其他DCI的译码置信度与步骤S101检测到的指示BWP切换的DCI的译码置信度。
如果其他DCI的译码置信度远远大于指示BWP切换的DCI的译码置信度，则UE确定虚检到指示BWP切换的DCI，进而直接丢弃步骤S101检测到的所述指示BWP切换的DCI。其中，其他DCI的译码置信度远远大于指示BWP切换的DCI的译码置信度是指，所述其他DCI的译码置信度大于所述指示BWP切换的DCI的译码置信度，且两者的偏差大于第一预设阈值。所述第一预设阈值可以为3分贝(decibel，简称dB)。
如果其他DCI的译码置信度远远小于指示BWP切换的DCI的译码置信度，则UE确定检测到的指示BWP切换的DCI更为可信，则直接丢弃其他DCI并尝试切到目标BWP。进一步，在切换到目标BWP 后，UE可以在目标BWP观测一段时间(即下述预设周期)，如果在此期间检测到USS DCI或者PDSCH的译码结果表明该PDSCH真实存在，则UE可以一直驻留在目标BWP。反之，若UE在目标BWP内始终(如一段时间内)未检测到任何USS DCI，或者接收到的PDSCH不能确认真实存在，则UE可以尝试主动切换回原BWP。其中，所述一段时间可以根据实际需要确定，如短于指示BWP切换的DCI中指示的BWP非激活定时器(BWP-inactive timer)的时长。
如果其他DCI的译码置信度和指示BWP切换的DCI的译码置信度相当，则UE可以尝试继续驻留在原BWP以接收相应的PDSCH，并保留步骤S101所检测到的指示BWP切换的DCI中的BWP切换信息。
进一步，如果接收到的PDSCH译码正确，则可以确认接收到的PDSCH有效。
如果接收到的PDSCH译码错误，但测量PDSCH的RSRP、RSSI以及SNR等的测量结果大于各自对应的门限值，则可以确认接收到的PDSCH有效。
进一步，如果未接收到PDSCH，但检测到其他USS DCI且译码成功，则同样可以确认在原BWP发生有效的上下行调度。
因此，在本应用场景中，若接收到的PDSCH有效，或者检测到其他USS DCI且译码成功，UE确认虚检到指示BWP切换的DCI，并继续驻留在原BWP；否则，UE直接切换到目标BWP。
进一步，在切换到目标BWP后，UE可以进一步根据目标小区的调度情况确认是否继续驻留在目标BWP。
例如，如果步骤S101检测到的指示BWP切换的DCI为格式1-1，即下行DCI。则UE可以在目标BWP上接收PDSCH，根据PDSCH的译码结果以及RSRP、RSSI和SNR等相关参数是否属于合理范围来判断本次BWP切换是否合理。如果PDSCH的译码结果以及各参 数属于合理范围，则UE确认切换动作合理，因而继续驻留在目标BWP。如果PDSCH的译码结果以及各参数不属于合理范围，则UE确认切换动作不合理，因而切换回原BWP。
又例如，如果步骤S101检测到的指示BWP切换的DCI为格式0-1，即上行DCI。则UE可以暂不发送DCI指示的PUSCH，而是处于目标BWP一个HARQ周期内。如果该在HARQ周期内接收到基站发送的重传该PUSCH的DCI，或者检测到其他USS DCI，则UE可以确认切换合理，因而继续驻留在目标BWP。如果在HARQ周期内没有收到上述指示重传PUSCH的DCI，则确认切换不合理，UE重新切换回原BWP。
以系统帧号(System Frame Number，简称SFN)921为例，假设在时隙14检测到2个DCI。其中，DCI 1指示原BWP 1，k0＝0，译码置信度为(0xffff-0)；DCI 2指示BWP 2，k0＝5，译码置信度为(0xffff–0x15c)。由于DCI 2的置信度远远小于DCI 1，因此UE可以直接丢弃DCI 2。
上述第一个应用场景和第二个应用场景均在从检测到指示BWP切换的DCI到实际执行切换之前的这段时间监测有没有USS的上下行调度。两者的区别在于，第一个应用场景可以在检测到指示BWP切换的DCI的当前时隙即完成上下行调度是否有效的判断，而第二个应用场景则需要更多时隙才能判断。
在第三个典型的应用场景中，若执行BWP切换之前只检测到步骤S101检测的这个指示BWP切换的DCI，且之后的时隙没有PDSCH接收和PUSCH发送的调度，则可以确定未发生有效的上下行调度。此时，UE可以尝试切换至目标BWP。
由于目标小区的调度情况同样能够用作BWP切换合理性的判别，因而在本应用场景中，根据指示BWP切换的DCI的译码置信度大小来进一步合理化UE在切换至目标BWP后的处理逻辑。
在第三个应用场景的第一个具体实施方式中，若所述指示BWP切换的DCI的译码置信度大于等于第二预设阈值，则可以认为该指示BWP切换的DCI具有较高的可靠性。相应的，UE直接切换到目标BWP。
具体地，第二预设阈值的具体数值可以在UE出厂时根据仿真结果设定。
进一步，在执行步骤S102以切换至所述目标BWP之后，UE还可以执行步骤：判断预设周期内是否在所述目标BWP接收到DCI或者有效的PDSCH；若超过所述预设周期仍未接收到DCI和有效的PDSCH，则切换回所述原BWP；若在所述预设周期内接收到DCI或者有效的PDSCH，则继续驻留在所述目标BWP。
进一步，所述预设周期可以短于BWP非激活定时器的时长，其中，所述BWP非激活定时器通过所述指示BWP切换的DCI指示。
进一步，在所述目标BWP接收到DCI可以是指检测到USS的DCI。
进一步，有效的PDSCH可以是指PDSCH的译码正确。或者虽然PDSCH译码错误，但测量PDSCH的RSRP、RSSI和SNR等参数的测量结果大于门限值。
在第三个应用场景的第二个具体实施方式中，若所述指示BWP切换的DCI的译码置信度小于第二预设阈值，则可以认为该指示BWP切换的DCI存在不可靠性。相应的，UE可以先尝试切换到目标BWP，然后根据该指示BWP切换的DCI的具体类型确定接下来的处理逻辑。
例如，若所述指示BWP切换的DCI为下行DCI(如格式1-1的DCI)，则在执行步骤S102以切换至所述目标BWP之后，UE还可以执行步骤：在所述目标BWP接收PDSCH并译码；若译码结果表明所述PDSCH有效，则继续驻留在所述目标BWP；若译码结果表明所 述PDSCH无效，则切换回所述原BWP。
PDSCH有效可以是指PDSCH的译码正确。或者虽然PDSCH译码错误，但测量PDSCH的RSRP、RSSI和SNR等参数的测量结果大于门限值。
又例如，若所述指示BWP切换的DCI为上行DCI(如格式0-1的DCI)，则在执行步骤S102以切换至所述目标BWP之后，UE还可以执行步骤：暂缓在所述目标BWP发送PUSCH；若在HARQ周期内接收到指示PUSCH重传的DCI或检测到其他DCI，则继续驻留在所述目标BWP；若超过HARQ周期仍未接收到指示PUSCH重传的DCI或检测到其他DCI，则切换回所述原BWP。其中，其他DCI可以为其他USS的DCI。
在一个具体实施中，在执行上述三个应用场景所述方案期间，本实施例所述处理方法还可以包括步骤：若在切换至目标BWP之前再次接收到指示切换至所述目标BWP的DCI，则立即切换至所述目标BWP。
具体而言，如果在执行上述三个应用场景期间，又检测到指示切换至同一目标BWP的DCI，则此时可以直接无条件地切换至目标BWP而无需做任何额外判断。
在一个具体实施中，响应于检测到指示BWP切换的DCI，在执行步骤S101所述判断步骤之前，本实施例所述处理方法还可以包括步骤：对所述指示BWP切换的DCI的至少部分位域进行合法性检测；若合法性检测通过，则判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度。
由此，通过双重判断进一步降低UE误检到指示BWP切换的DCI的几率。
由上，采用本实施方案，通过结合检测到指示BWP切换后在原BWP上的后续调度情况，尽最大可能识别出虚检的指示BWP切换的 DCI，保证UE与基站处于同一个BWP，保证通信质量。具体而言，结合协议描述可以确定，在指示BWP切换后至UE切换至目标BWP期间，基站原则上不会再在原BWP上对UE进行上下行调度。因此，通过监测检测到指示BWP切换的DCI后在原BWP上是否还有上下行调度，能够准确判别该指示BWP切换的DCI是否真实有效。
本发明方案可以有效地改善UE误检到指示BWP切换的DCI之后直接切BWP导致UE和基站失联的问题，也最大可能保留调度的完整性。
图5是本发明实施例一种针对BWP切换指示的处理装置的结构示意图。本领域技术人员理解，本实施例所述针对BWP切换指示的处理装置5可以用于实施上述图1至图4所述实施例中所述的方法技术方案。
具体地，参考图5，本实施例所述针对BWP切换指示的处理装置5可以包括：判断模块51，响应于检测到指示BWP切换的DCI，判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度；切换模块52，若判断结果表明未发生有效的上下行调度，则切换至所述目标BWP。
关于所述针对BWP切换指示的处理装置5的工作原理、工作方式的更多内容，可以参照上述图1至图4中的相关描述，这里不再赘述。
在具体实施中，上述的针对BWP切换指示的处理装置可以对应于用户设备中具有BWP切换功能的芯片，或者对应于具有数据处理功能的芯片，例如片上系统(System-On-a-Chip，简称SOC)、基带芯片等；或者对应于用户设备中包括具有BWP切换功能芯片的芯片模组；或者对应于具有数据处理功能芯片的芯片模组，或者对应于用户设备。
在具体实施中，关于上述实施例中描述的各个装置、产品包含的 各个模块/单元，其可以是软件模块/单元，也可以是硬件模块/单元，或者也可以部分是软件模块/单元，部分是硬件模块/单元。
例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。
本发明实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机程序，所述计算机程序被处理器运行时执行上述任一实施例提供的针对BWP切换指示的处理方法的步骤。优选地，所述存储介质可以包括诸如非挥发性(non-volatile)存储器或者非瞬态(non-transitory)存储器等计算机可读存储介质。所述存储介质可以包括ROM、RAM、磁盘或光盘等。
本发明实施例还提供了另一种针对BWP切换指示的处理装置，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，所述处理器运行所述计算机程序时执行上述图1至图4对应实施例所提供的针对BWP切换指示的处理方法的步骤。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指示相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：ROM、RAM、磁盘或光盘等。
本方明技术方案可适用于5G(5generation)通信系统，还可适用于4G、3G通信系统，还可适用于后续演进的各种通信系统，例如6G、7G等。
本方明技术方案也适用于不同的网络架构，包括但不限于中继网络架构、双链接架构，Vehicle-to-Everything(车辆到任何物体的通信)架构。
本申请实施例中所述的5G CN也可以称为新型核心网(new core)、或者5G NewCore、或者下一代核心网(next generation core，NGC)等。5G-CN独立于现有的核心网，例如演进型分组核心网(evolved packet core，EPC)而设置。
本申请实施例中的基站(base station，BS)，也可称为基站设备，是一种部署在无线接入网用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(base transceiver station,BTS)和基站控制器(base station controller，BSC)，3G网络中提供基站功能的设备包括节点B(NodeB)和无线网络控制器(radio network controller，RNC)，在4G网络中提供基站功能的设备包括演进的节点B(evolved NodeB，eNB)，在无线局域网络(wireless local area networks，WLAN)中，提供基站功能的设备为接入点(access point，AP)，5G新无线(New Radio，NR)中的提供基站功能的设备包括继续演进的节点B(gNB),以及未来新的通信系统中提供基站功能的设备等。
本申请实施例中的终端可以指各种形式的用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台(mobile station，MS)、远方站、远程终端、移动设备、用户终端、终端设备 (terminal equipment)、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例对此并不限定。
本申请实施例定义接入网到终端的单向通信链路为下行链路，在下行链路上传输的数据为下行数据，下行数据的传输方向称为下行方向；而终端到接入网的单向通信链路为上行链路，在上行链路上传输的数据为上行数据，上行数据的传输方向称为上行方向。
应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，表示前后关联对象是一种“或”的关系。
本申请实施例中出现的“多个”是指两个或两个以上。
本申请实施例中出现的第一、第二等描述，仅作示意与区分描述对象之用，没有次序之分，也不表示本申请实施例中对设备个数的特别限定，不能构成对本申请实施例的任何限制。
本申请实施例中出现的“连接”是指直接连接或者间接连接等各种连接方式，以实现设备间的通信，本申请实施例对此不做任何限定。本申请实施例中出现的“网络”与“系统”表达的是同一概念，通信系统即为通信网络。
应理解，本申请实施例中，所述处理器可以为中央处理单元(central processing unit，简称CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，简称DSP)、专用集成电 路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的随机存取存储器(random access memory，RAM)可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
上述实施例，可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如红外、无线、微波等)方式向另一个网站站点、 计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质。半导体介质可以是固态硬盘。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
在本申请所提供的几个实施例中，应该理解到，所揭露的方法、装置和系统，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的部分步骤。 而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (21)

  1. 一种针对BWP切换指示的处理方法，其特征在于，包括：
    响应于检测到指示BWP切换的DCI，判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度；
    若判断结果表明未发生有效的上下行调度，则切换至所述目标BWP。
  2. 根据权利要求1所述的处理方法，其特征在于，还包括：
    若判断结果表明发生有效的上下行调度，则继续驻留在所述原BWP。
  3. 根据权利要求1或2所述的处理方法，其特征在于，还包括：
    若在切换至目标BWP之前再次接收到指示切换至所述目标BWP的DCI，则立即切换至所述目标BWP。
  4. 根据权利要求1所述的处理方法，其特征在于，所述判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度包括：
    判断在切换至目标BWP之前在原BWP是否发生上下行调度；
    若判断结果表明发生上下行调度，则根据所述上下行调度的译码结果判断所述上下行调度是否有效。
  5. 根据权利要求4所述的处理方法，其特征在于，所述判断在切换至目标BWP之前在原BWP是否发生上下行调度包括：
    判断在切换至目标BWP之前在原BWP是否检测到其他DCI；
    判断在切换至目标BWP之前在原BWP是否发生数据传输的调度。
  6. 根据权利要求4所述的处理方法，其特征在于，所述根据所述上下行调度的译码结果判断所述上下行调度是否有效包括：
    若在切换至目标BWP之前未在原BWP检测到其他DCI，但发生 数据传输的调度，则在所述原BWP接收所述数据；
    根据对所述数据的译码结果判断所述上下行调度是否有效。
  7. 根据权利要求6所述的处理方法，其特征在于，指示所述数据传输的调度的DCI在检测到指示BWP切换的DCI之前的时隙发送。
  8. 根据权利要求4所述的处理方法，其特征在于，所述根据所述上下行调度的译码结果判断所述上下行调度是否有效包括：
    若在切换至目标BWP之前在原BWP检测到其他DCI，且发生数据传输的调度，则比较所述其他DCI与所述指示BWP切换的DCI的译码置信度；
    若所述其他DCI的译码置信度大于所述指示BWP切换的DCI的译码置信度，且两者的偏差大于第一预设阈值，则确定所述上下行调度有效；
    若所述其他DCI的译码置信度小于所述指示BWP切换的DCI的译码置信度，且两者的偏差大于所述第一预设阈值，则确定所述上下行调度无效；
    若所述其他DCI的译码置信度与所述指示BWP切换的DCI的译码置信度之间的偏差小于所述第一预设阈值，则在所述原BWP接收所述数据，并根据对所述数据的译码结果判断所述上下行调度是否有效。
  9. 根据权利要求6或8所述的处理方法，其特征在于，所述根据对所述数据的译码结果判断所述上下行调度是否有效包括：
    若所述数据的译码结果表明所述数据有效，则确定所述上下行调度有效；
    若所述数据的译码结果表明所述数据无效，确定所述上下行调度无效。
  10. 根据权利要求9所述的处理方法，其特征在于，所述数据有效至少包括以下任一种情况：接收到的PDSCH有效；检测到的其他DCI译码成功。
  11. 根据权利要求1所述的处理方法，其特征在于，在切换至所述目标BWP之后，还包括：
    判断预设周期内是否在所述目标BWP接收到DCI或者有效的PDSCH；
    若超过所述预设周期仍未接收到DCI和有效的PDSCH，则切换回所述原BWP；
    若在所述预设周期内接收到DCI或者有效的PDSCH，则继续驻留在所述目标BWP。
  12. 根据权利要求11所述的处理方法，其特征在于，所述指示BWP切换的DCI的译码置信度大于等于第二预设阈值。
  13. 根据权利要求11所述的处理方法，其特征在于，所述预设周期短于BWP非激活定时器的时长，其中，所述BWP非激活定时器通过所述指示BWP切换的DCI指示。
  14. 根据权利要求1所述的处理方法，其特征在于，若所述指示BWP切换的DCI为下行DCI，则在切换至所述目标BWP之后，还包括：
    在所述目标BWP接收PDSCH并译码；
    若译码结果表明所述PDSCH有效，则继续驻留在所述目标BWP；
    若译码结果表明所述PDSCH无效，则切换回所述原BWP。
  15. 根据权利要求1所述的处理方法，其特征在于，若所述指示BWP切换的DCI为上行DCI，则在切换至所述目标BWP之后，还包括：
    暂缓在所述目标BWP发送PUSCH；
    若在HARQ周期内接收到指示PUSCH重传的DCI或检测到其他 DCI，则继续驻留在所述目标BWP；
    若超过HARQ周期仍未接收到指示PUSCH重传的DCI或检测到其他DCI，则切换回所述原BWP。
  16. 根据权利要求14或15所述的处理方法，其特征在于，所述指示BWP切换的DCI的译码置信度小于第二预设阈值。
  17. 根据权利要求1所述的处理方法，其特征在于，所述DCI为USS DCI。
  18. 根据权利要求1所述的处理方法，其特征在于，在判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度之前，还包括：
    对所述指示BWP切换的DCI的至少部分位域进行合法性检测；
    若合法性检测通过，则判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度。
  19. 一种针对BWP切换指示的处理装置，其特征在于，包括：
    判断模块，响应于检测到指示BWP切换的DCI，判断在切换至目标BWP之前在原BWP是否发生有效的上下行调度；
    切换模块，若判断结果表明未发生有效的上下行调度，则切换至所述目标BWP。
  20. 一种计算机可读存储介质，所述计算机可读存储介质为非易失性存储介质或非瞬态存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器运行时执行权利要求1至18中任一项所述方法的步骤。
  21. 一种针对BWP切换指示的处理装置，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机程序，其特征在于，所述处理器运行所述计算机程序时执行权利要求1至18中任 一项所述方法的步骤。
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